The process in which there is no heat exchange of gas, it is called adiabatic process. In this process, TVγ−1=k [constant] Now, T2V2(γ−1)=k2= constant . . . (i) Given that, T2Vα= constant . . . (ii) Comparing Eqs. (i) and (ii), we get α=2(γ−1) Using γ=‌